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Scholars Portal
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Preserved
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2025-09-02
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Preserved : 17 (1, 2); 18 (, 1, 2); 19 (, 1, 2); 20 (, 1, 2); 21 (, 1 to 4); 22 (, 4); 26 (, 1 to 5); 27 (, 1 to 5); 28 (, 1 to 5); 29 (, 1 to 5); 30 (, 1 to 5); 31 (, 1 to 5); 32 (, 1 to 5); 33 (, 1 to 5); 34 (, 1 to 6); 35 (, 1 to 6); 36 (, 1 to 6); 37 (, 1 to 6); 38 (, 1 to 6); 39 (, 1 to 6); 40 (, 1 to 6); 41 (, 1 to 6); 42 (, 1 to 4); 1999; 2000; 2001; 2002; 2003; 2004; 2005; 2009; 2010; 2011; 2012; 2013; 2014; 2015; 2016; 2017; 2018; 2019; 2020; 2021; 2022; 2023; 2024; 2025
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Portico
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Preserved
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2026-02-12
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Preserved : 1973/1975: 1(1-2), 1976/1977: 2(1-2), 1978: 3(1-2), 1979/1980: 4(1-2), 1980/1981: 5(1-2), 1981/1982: 6(1-2), 1983/1984: 7(1-2), 1984/1985: 8(1-2), 1985/1986: 9(1-2), 1988/1989: 10(1-2), 1990/1991: 11(1-2), 1992/1993: 12(1-2), 1993/1994: 13(1-2), 1995: 14(1-2), 1996: 15(1-2), 1998: 16(1-2), 1999: 17(1-2), 2000/2001: 18(1-2), 2002: 19(1-2), 2003: 20(1-2), 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-4), 2008: 25(1-4), 2009: 26(1-5), 2010: 27(1-5), 2011: 28(1-5), 2012: 29(1-5), 2013: 30(1-5), 2014: 31(1-5), 2015: 32(1-5), 2016: 33(1-5), 2017: 34(1-6), 2018: 35(1-6), 2019: 36(1-6), 2020: 37(1-6), 2021: 38(1)
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CLOCKSS Archive
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In Progress
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2026-02-09
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5 to 21, 23, 34 to 42
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LOCKSS Archive
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In Progress
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2026-02-09
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5 to 17, 19, 25, 26, 42
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LOCKSS Archive
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Preserved
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2026-02-09
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18, 20 to 24, 27 to 41
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CLOCKSS Archive
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Preserved
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2026-02-09
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22, 24 to 33
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Portico
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Preserved
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2026-02-12
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Preserved : 2021: 38(4-6), 2022: 39(1-6), 2023: 40(1-6), 2024: 41(1-6), 2025: 42(1-6), 2026: 43(1)
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LOCKSS Archive
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Preserved
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2026-02-09
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21 to 25
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CLOCKSS Archive
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Preserved
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2026-02-09
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23, 25
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Portico
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Preserved
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2026-02-12
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Preserved : 2004: 21(1-4), 2005: 22(1-4), 2006: 23(1-4), 2007: 24(1-4), 2008: 25(1-4)
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Library of Congress
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Preserved
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2025-04-07
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27 (1 to 5); 28 (1 to 5); 29 (1 to 5); 30 (1 to 5); 31 (1 to 5); 32 (1 to 5); 33 (1 to 5); 34 (1 to 6); 35 (1 to 6); 36 (1 to 6); 37 (1 to 6); 38 (1 to 6); 39 (1 to 6); 40 (1 to 6); 41 (1 to 6)
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National Library of the Netherlands
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Preserved
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2024-12-15
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Preserved : 17 (1, 2); 18 (1, 2); 19 (1, 2); 20 (1, 2); 21 (1-4); 22 (1-4); 23 (1-4); 24 (1-4); 25 (1-4); 26 (1-5); 27 (1-5); 28 (1-3); 29 (2-5); 30 (1-5); 31 (1, 3-5); 32 (1-4); 33 (1-5); 34 (1-6); 35 (1-6); 36 (1, 3-6)
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British Library
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Preserved
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2019-09-18
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Preserved : 31 (1 to 5), 32 (1 to 5), 33 (1 to 5), 34 (1 to 6), 35 (1 to 5)
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